5% Zinc Oxide. Inactive: Water ●
TL;DR. This ingredient is an inorganic particulate UV filter used to reflect, scatter, and absorb ultraviolet radiation. At 5%, it contributes sunscreen protection, with stronger coverage in the UVB range and partial UVA support depending on particle size and dispersion quality.
What does 5% Zinc Oxide. Inactive: Water do in a cosmetic formula?
This ingredient is an inorganic particulate UV filter used to reflect, scatter, and absorb ultraviolet radiation. At 5%, it contributes sunscreen protection, with stronger coverage in the UVB range and partial UVA support depending on particle size and dispersion quality.
Is 5% Zinc Oxide. Inactive: Water clean?
From a clean-beauty perspective, it is generally well accepted because it is low-sensitizing and widely used in mineral sunscreen systems. The main scrutiny is around nanoparticle disclosure, inhalation concerns in loose powders or aerosols, and ensuring the grade is suitable for leave-on skin use.
Is 5% Zinc Oxide. Inactive: Water sustainable?
This material is mineral-derived and not biodegradable in the organic sense, but it is inorganic and generally persistent as a stable particle rather than breaking down into organic residues. Environmental discussion focuses on particle size, aquatic exposure from rinse-off or beach-use products, and responsible mining and processing controls.
Is 5% Zinc Oxide. Inactive: Water COSMOS-approved?
It is permitted under COSMOS natural and organic frameworks when it meets the standard’s purity, use, and particle-size conditions, with nano forms subject to specific declaration and regulatory requirements. Its Green Chemistry fit is mixed, since it is inert and low-reactivity in use, but it is non-renewable and requires mined feedstock and controlled particle processing.
How does 5% Zinc Oxide. Inactive: Water work chemically?
The molecule is an insoluble inorganic lattice material used as dispersed solid particles, so performance depends heavily on particle size, surface treatment, and even distribution in the formula. It is photostable and works across a broad pH range, but it can settle, agglomerate, or affect texture and whitening unless the suspension system is well designed.
Last updated 2026-05-15